Tìm : Ðề tựa Tác giả Chủ đề Loạt Số gọi bắt đầu với: 10 20 30 50 100 mỗi trang < Các đầu đề trước đó 10 Đầu đề kế tiếp 10 > Dò tìm các tiêu đề # Simple machines 40 SEE ALSO narrower term: Inclined planes 8 SEE ALSO narrower term: Inclined planes 8 SEE ALSO narrower term: Levers 13 SEE ALSO narrower term: Levers 13 SEE ALSO narrower term: Pulleys 16 SEE ALSO narrower term: Pulleys 16 SEE ALSO narrower term: Screws 7 SEE ALSO narrower term: Screws 7 SEE ALSO narrower term: Wedges 8 SEE ALSO narrower term: Wedges 8 SEE ALSO narrower term: Wheels 15 Simple machines -- Experiments. 6 Simple machines -- Experiments -- Juvenile literature. 3 Simple machines -- Fiction. 2 Simple machines -- Juvenile fiction. 2 Simple machines -- Juvenile films. 6 Simple machines -- Juvenile literature 52 Simple machines -- Programming -- Juvenile literature. 1 Simple microscopes -- SEE: Magnifying glasses 3 SEE: Magnifying glasses 3 Simplicidad. 1 10 20 30 50 100 mỗi trang < Các đầu đề trước đó 10 Đầu đề kế tiếp 10 >